Dyfyniad APA

Modell, W., & Lansing, A. j. a. (1980). Drugs (2d ed.). Time-Life Books.

Dyfyniad Arddull Chicago

Modell, Walter, and Alfred joint auth Lansing. Drugs. 2d ed. Hongkong: Time-Life Books, 1980.

Dyfyniad MLA

Modell, Walter, and Alfred joint auth Lansing. Drugs. 2d ed. Time-Life Books, 1980.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.